Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce402023bb5ee8b9…

MALICIOUS

PDF

123.5 KB Created: 2021-03-17 03:17:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c517a2f071d6ed585c6160680ef2111e SHA-1: 3d026402647da87b9b720a84efad23c714eba667 SHA-256: ce402023bb5ee8b9eb06ec8e2c0bfb3bd3256e86f076fd515cf07fcc44bb3c4c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://soxebez.ru/strik?utm_term=alice+bailey+astrology+chart PDF link annotation
    • http://ig-copyrightviolation.com/what_is_the_auto_tax_rate_in_texasqv9ay.pdfIn PDF document text
    • http://frukt.space/fipifekobugamaleladobeethgn.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/aViggeC/gigalife_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kimefutif/9TjbJxF/vesinupumanesa.pdfIn PDF document text
    • https://cdn.sqhk.co/pemoxeriko/hhhdThd/wings_financial_woodbury_mn_hours.pdfIn PDF document text
    • http://hot-money.fun/4017408192488dk7.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/Pjbdicv/tiktok_apk_app_downloading.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/ribhggg/44252142726.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ecd18c-62fc-41f3-add8-75fbca6cc200/5_day_meal_plan_to_lose_weight_fast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf037fd0-8045-4b3e-ba47-f67a7f8e5028/harry_potter_book_one_chapter_4.pdfIn PDF document text
    • http://zefuxaninegug.epizy.com/86008254699.pdfIn PDF document text
    • http://rodixotezogas.rf.gd/31593398291.pdfIn PDF document text
    • http://tolitaxolumupu.rf.gd/4816297117.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81a4ccb3-9a99-4560-ac12-611a48536e73/23394033075.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19e97dd3-10e6-453c-96f8-7bbe487f0a47/93441818928.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edc4a3e1-d469-4778-9911-8461ece62104/how_to_make_anime_eyes_easy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b889b6b-3c63-41e6-91ee-8dccdf38d6ab/list_at_least_three_important_purposes_of_writing_report_and_explain_them_brainly.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b3eac5f-980d-44b0-9ffc-bdb50cbb4034/earthbound_strategy_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19c56faf-eb81-4578-a429-07111b3fcb11/jayco_precept_owners_forum.pdfIn PDF document text
    • http://lukovim.epizy.com/mulavosanekomixufezisoxal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0832236c-e4b7-42d6-8fb3-dc0610fe5108/92879914533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a15432ca-72e6-4a5b-99b9-df70e4136ca0/what_does_it_mean_if_the_wps_button_is_red.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea3689d5-0f7a-495e-80b8-cb1c0bb8fce8/36026184347.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A72E 5292 bytes
SHA-256: 78edf566ef430bc0a8ac547c9a6060cfdb5056c8da9f5532011defe4902e3b69
font_01_sfnt_off0001b92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B92D 11764 bytes
SHA-256: 1935f5a9990acb458df07b0303731486c71ee86e62f6033a690d463899c73502

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